Spark plug effetcing acceleration?

[Shimmydude]

Hi, my bike gave up on me today and I ended up pushing it home. When I got it back I had a look at the spark plug and found that the gap (should have been 0.25 - 0.31mm) and it was more around 2mm.

Would this have caused the plug to not spark (on and off) and result in thebike lacking acceleration? Also would it partly flood the engine as the fuel isn’t being sparked?

I found that once i had adjusted the plug's space to what it should have been the bike pulled easier off at 2500 revs as apposed to 4/5000 which it needed before!
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[Kickstart]

Hi

Yes it would definatly cause problems. Surprised it ran at all with a spark plug gap like that.

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[Shimmydude]

As weird as it sounds, I am glad to hear you say that At least it looks as though I found the source of my problem. All I have to do now is take it out for another run to see if that has solved it. Just I am a bid wary in case it breaks down again! Fingers crossed it wouldn’t!
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[Noggin]

Can't believe this, the same has happened to me today. I was happily riding along, and then, no spark, bike cuts out, and I'm on a hill, luckily the next college entrance was on the hill, so I rolled back into college! Had no time to check, but I figured it was the spark plug. Got Dad to check whilst I was at work, and low and behold, it was!

Got a new one now anyway, bike much better!



Craig G(Noggin)
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Current bike: kawasaki zx12r 2002
Track bike: yamaha r6 1998
Old Bike: honda NSR 125 1998

[Jammy-G]

2 strokes and spark plugs don't get on.

Mine cut out after a 5 min warm up outside college, i pulled off and heard the engine chugging, then it started not responding to the throttle so I pulled over and the engine sounded really uneven.
It then died. Luckily I had brought a little tool kit with me and took out the plug gave it a quick clean, replaced it and it went ok. When its warm I have no problems at all, seems even a slightly cold engine affects it.

Maybe I should ride off with the choke out for a while..

Had first proper ride today with a friend, not much road on the traffic either. Non-compulsory education is bliss !!


James

[Noggin]

You're right there, good old non compulsory education.

I would have cleaned the spark, again, but had to get to work, would be quicker to walk, so, i did!

I also keep a tool kit under the seat, had a quick look under tank to see if the cap had come off the plug, as I only cleaned it the day before, then left bike and went to work.

But thinking about it, the gap on my old one was huge (2mm or so), luckily got changed today!



Craig G(Noggin)
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Current bike: kawasaki zx12r 2002
Track bike: yamaha r6 1998
Old Bike: honda NSR 125 1998

[Hex]

[Shimmydude]

It's reassuring to hear that other people have had the same problem as me, not meant in a mean way, lol. Just means that it’s not just my bike!
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